Ultrasonic diagnosis method for liver cancer

I believe that most of my friends have an indescribable fear of liver cancer, but when certain symptoms similar to liver cancer really appear, in addition to fear, we need to face it bravely. This is the only way, so the following experts will explain in detail the method of using ultrasound imaging to check liver cancer.

(I) Encapsulation

Liver cancer nodules with a diameter of less than 3 cm often have intact capsules. The capsule is composed of fibrous tissue, and its acoustic impedance is lower than that of the surrounding liver tissue and cancer.

The lesions are uniformly high, thus forming an interface reflection. On the two-dimensional sonogram, a thin low-echo membrane can be shown surrounding the entire cancer nodule. The thickness of the capsule is estimated to be <0.5mm. On the sonogram, the capsule is relatively smooth and uniform, with regular shape, and is round or oval. This reflects the characteristics of the expansive growth of small liver cancer. However, the capsule on the sonogram always appears interrupted on both sides of the nodule, which is the echo loss effect of the large interface. When the liver cancer is very large, its capsule is generally unclear. However, there are also cases where the capsule is still very intact when the diameter of the cancer nodule is greater than 5cm. At this time, its inner echo is often accompanied by acoustic halo.

(II) Internal Echo

The echoes inside cancerous nodules vary in height and tend to be variable. Except for uniform low-echo nodules, the echoes of other cancerous nodules are unevenly distributed. The detection rate of liver cancer nodules <1cm by ultrasound is 33% to 37%. Cancerous nodules are classified according to the height of the echoes as follows:

1. Hypoechoic nodules

2. Hyperechoic nodules

3. Mixed nodules

4. Echoic nodules

5. Relationship between nodule echogenicity and blood supply

The above is the method of using ultrasound to examine liver cancer. I hope that through this article you will have a preliminary understanding of this method. Here I still want to emphasize one issue, that is, when you find that you have liver cancer, don’t just passively avoid it. Facing it bravely is the most effective solution.